Product Description

Do you use a battery master switch for your boat batteries? Why not install a C100 Battery Combiner – Voltage Sensitive Relay. The Combiner 100 is a device which automatically connects two batteries together when either is receiving a charge.

No more remembering to switch between 1 or 2 or BOTH batteries in your boat.

No more risk of a flat starting battery because you left the switch on “BOTH”

Can be used with or without a manual battery master switch (see diagram)

100 Amp Battery Combiner

How does it work?

The Combiner 100 is a voltage-sensing relay (13.3 volts) which connects two batteries together when either is receiving a charge. When the charging ceases, the relay opens so that each battery operates independently. Supplemental battery banks can be added by using an additional combiner for each bank.

You never have to worry about switching to “BOTH” when your engine is running and forgetting to switch back to save your starting battery from discharge when you stop.

This combiner is suitable for installations with alternators up to 100 amps with one battery in each bank. Larger installations should consider using the 160 AMP model.